object.property.toString.call
时间: 2024-05-29 13:12:39 浏览: 100
This is a way to determine the data type of an object's property using the `toString` method and the `call` method to pass the property as the `this` value.
For example, if `object.property` is a string, `object.property.toString.call` will return `[object String]`. If it is a number, it will return `[object Number]`, and so on for other data types.
This can be useful for checking the data type of a property when it is not known beforehand, or for validating input data.
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